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Two editions will be published: one using 5E rules, and one using the DCC RPG rules. Packaged in a handsome slipcase, each edition will be published as three hardcover books. Volume one is a reprint of the classic adventure, with introductory essays by gaming luminaries, including John Rateliff, Eric Mona, Justin Alexander, James Maliszewski, Jon “Taco” Hershberger, Stephen Newton, and others.. Volume two is a conversion of Dark Tower to new rules. Volume three is The Chosen Suns of Set, an all-new adventure and sourcebook expanding on concepts presented in the original 1979 adventure.

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You can read more about the Dark Tower on the Alexandrian over here.

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Go to Part 1

STEALING THE JEWEL?

As written, if the PCs have the Jewel of Three Prayers and the Rivals are Unfriendly towards them, then the Rivals will attempt to steal the Jewel. This is also listed above as one of the general courses of action that the Rivals might pursue.

I would be extremely cautious about having the Rivals choose this course of action. I’ve been DMing for awhile and, in my experience, there are two Unforgivable Sins that an NPC can commit:

1. They can kill a PC’s pet.
2. They can steal the PC’s shit.

Anything else is probably negotiable, but these are almost always points of no return.

So if the Rivals steal the Jewel? Particularly early in the campaign before the PCs have established a relationship with them?

The Rivals are dead meat.

I’m not saying you should never do this. If it makes sense, then roleplay truthfully.

I’m just saying that you should be prepared for the consequences, which could very easily see the Rival’s role in the campaign come to an abrupt (and messy) end.

THE GMPC PROBLEM

If the Rivals are friendly with the PCs, it can quite logically end up with them joining the PCs so that they can all work together. As I mentioned above, Call of the Netherdeep actually scripts exactly this moment at the very beginning of the adventure:

If the characters are on friendly terms with the rivals, the rivals meet up with them soon after the characters’ breakfast with Elder Ushru.

Ayo Jabe doesn’t mince words; she wants to know what they found in the grotto. If she gets the sense that the characters have stumbled onto something big, her eyes grow wide. She decides that she and her group want a piece of the action and proposes that they travel with the characters, saying that there’s safety in numbers. A character who makes a successful DC 13 Wisdom (Insight) check realizes that she isn’t hiding anything and wants nothing more than to be a part of a grand adventure.

Call of the Netherdeep quietly assumes that the PCs will turn this offer down, but it seems far more likely that the PCs will agree with Ayo Jabe’s logic…

… and now the GM has to deal with five GMPCs.

Honestly, this feels like a huge headache to me.

GMPCs are not the same thing as NPCs. A GMPC is a GM-controlled character who is functionally the same as a PC in the adventure: they’re an equal member of the party and you could basically imagine an invisible player at the table controlling them as such.

It is possible to have success with such characters, but it’s far more common for them to fall into one of two pitfalls:

First, the GMPC can hog the spotlight and/or be used to railroad the players. This may be because the GM wants to do this (bad GM, no cookie), but it’s often not intentional. The core problem here is that the GM has privileged information (i.e., everything in their notes). During prep, they can predict exactly what the GMPC will do, and this can become a seductive crutch for them to fall back on. During play, their knowledge of the scenario inherently biases their decision-making. And even if the GM erects an impeccable firewall around the GMPC, the other players know that the GMPC has this privileged information and it will affect their relationship with the GMPC and the GMPC’s opinions.

(Imagine that you had a player at the table who had read the entire adventure and that the other players knew had read the adventure.)

Second, the GMPC can become a weird kind of half-character who awkwardly doesn’t participate in group decisions and/or frequently “vanishes” from the game world because everyone forgets that they’re there. (This can even happen because the GM is trying to avoid the first problem: Knowing that the players will privilege the GMPC’s opinions, for example, they just never have the GMPC offer an opinion.)

So even running one NPC companion effectively can be a big challenge. Five GMPCs at the same time? That probably doesn’t just quintuple the difficulty; it’s almost certainly exponential increase in difficulty. Even laying aside the inherent difficulties, juggling those five characters and making sure they are consistently a living part of the campaign world is going to chew up a lot of your mental bandwidth. There’s also combat to consider: all those GMPC turns are going to slow combat down.

Speaking of combat: All those extra GMPCs are going to have a big impact on the balance of combat encounters. And, importantly, the adventure isn’t designed for this. Running 5^th Edition for a group of 10 PCs is infamously difficult, but Call of the Netherdeep seems to just blithely assume that it will make absolutely no difference at all.

If you’re comfortable trying to run five GMPCs, go for it.

For everyone else, I’m not saying you should never allow the PCs and Rivals to team up. But I could certainly take efforts to make sure that this is only a momentary state of affairs.

Redirect the Rivals into supporting action off-screen. In other words, the PCs do X while the Rivals take care of Y. This is a little difficult in Call of the Netherdeep because of the linear design of the campaign, but it can be managed. For example, they might go to research the Jewel of Three Prayers somewhere else and then join the PCs in Bazzoxan. In Ank’Harel, they might volunteer to infiltrate an enemy faction. And so forth.

Encourage splitting the party, with each smaller group having a mix of Rivals and PCs. (For these scenes, you might consider letting the players whose PCs are not present take on the roles of the Rivals, particularly for combat.)

Remember to debate the agenda. Our methodology for running the Rivals (i.e., they should frequently believe that the group should be pursuing a different goal or, if they share a goal, that there is a better way to achieve it) will naturally lend itself to either splitting the party or breaking the alliance between Rivals and PCs entirely. Don’t be afraid to lean into this, as the aftermath will heighten the tension between the groups to delightful heights.

CONCLUSION

Ultimately, this all boils down to a simple formula:

1. Roleplay truthfully. (Actively play the Rivals and track the relationship gauge.)
2. Debate the agenda. (And force the players to think about and defend their choices and opinions.)

But this formula will manifest itself with an infinite variety at the gaming table, as the Rivals and PCs collide spectacularly in myriad ways. The unpredictable nature of these conflicts itself will bring the drama — and the characters — to vivid life. As you choose to actively play with them, the players will feel the fundamental reality — the ineffable uniqueness — of the events happening at your gaming table, and they will rise to the occasion.

FURTHER READING
Call of the Netherdeep: Running Betrayers’ Rise

DISCUSSING
In the Shadow of the Spire – Session 27A: The Midnight Meeting

“By coming here, you have already joined this Brotherhood,” Dilar continued. “Over the next few weeks you will be contacted. For many of you there will be training. You will be asked to do things. Many of these things will seem simple or even unimportant, but you should never doubt that in even the smallest service you are aiding the Brotherhood and all that we are attempting to accomplish.”

If you’re a long-time reader of the Alexandrian, you’re probably familiar with the Three Clue Rule: In a mystery scenario, for any conclusion that you want the PCs to make, you should include at least three clues.

This redundancy makes mystery scenarios robust, so that they don’t break down during play and leave either you scrabbling frantically, your players frustrated, or both. In my experience, the process of fleshing out a scenario to support the Three Clue Rule also usually results in a more dynamic and interesting scenario.

When I’m prepping a module, therefore, I make it a point to check each revelation and make sure that the Three Clue Rule is being observed. For published adventures, unfortunately, this often isn’t the case, and I’ll need to add clues. Session 27 of In the Shadow of the Spire is a good example of this.

Many of the events detailed in this session — the secret meeting and project site — are from Monte Cook’s Night of Dissolution mini-campaign. A key revelation is, in fact, the location of the project site. From the secret meeting, the published adventure includes one clue pointing to that revelation:

Dilar has a number of papers and notebooks with him. […] Among other things, the papers show the location of the Brothers of Venom’s secret project: an apartment build in Oldtown off Crossing Street. The documents refer to the building only as the “secret project” or the “joint project,” however. (The address can lead them to the Temple of Deep Chaos, found in Chapter 4.) The pages also discuss the cult’s new allies, the Ebon Hand cult, and mention that cult’s leader, Malleck, and their activities involving kidnapping young people and transforming them.

(You can also see here a secondary revelation — the alliance with the Ebon Hand — which is non-essential.)

Seeing this, the first thing I did was prep Dilar’s papers as a physical handout that I could give to the PCs.

You can see that this is not particularly elaborate, being a fairly simplistic example of the lore books technique we’ve discussed previously. The primary goal here is just to let the players “shuffle through the papers,” rather than listening to me narrate them. The map here also neatly correlates to the map of the city hanging on the wall during our sessions, so the players would’ve been able to take this handout over to the map and literally figure out where they needed to go.

As it turned out, however, the players never actually got this handout. Which is why the next thing I did was so essential: Adding additional clues to support the revelation.

To the adventure’s credit, it does discuss multiple paths by which the PCs might come into possession of Dilar’s papers: They might, for example, kill him and loot them. Or they might bloodlessly infiltrate the meeting, take the opportunity to surreptitiously peek at his papers, and then get out without the cult being any the wiser.

But these routes still all go through Dilar’s papers, creating a chokepoint that makes the scenario fragile. You can see that in actual play here: Because of how events played out, only one PC infiltrated the meeting, making the “kill all the cultists and loot their stuff” outcome basically impossible. Tee was also well aware of how vulnerable she was, meaning that she didn’t want to take any risky actions that might expose her (e.g., looking at papers she shouldn’t be looking at). If I’d run the adventure as written, it would have broken here.

What I needed to do was create additional vectors leading from the secret meeting to the project site. (Alternatively, I could have gone for a node-based approach, adding clues to the secret meeting pointing to cult-stuff other than the project site, and then seeded additional clues to the project site in those other nodes.) My thought process went something like this:

• Well… what is the actual purpose of this meeting?
• What if it’s to brief cult members on the project site? That would also explain why Dilar is bringing notes detailing the project site to the meeting.
• We know that this meeting includes new recruits. They’re not going to be fully read in on the project. (Which is convenient logic, because otherwise all of the scenario’s revelations would get frontloaded into this single scene instead of being slowly peeled back by the PCs over the course of their investigation.)
• What would the cult be asking new recruits to do that might be related to the project?
• They could be assigned as external security/lookouts!

This immediately gives me two new clues:

• The PCs can infiltrate the meeting and get briefed on the contents of Dilar’s notes.
• The PCs could question Iltumar about what he learned at the meeting.

And then, by having the cult members taken directly from the meeting to the project site, I can add another clue:

• Following cult members leaving the meeting will lead PCs to the project site.

While this took a little bit of thought, one thing to note here is how little prep was actually required. This is often the case. In my experience, it takes virtually no effort and a truly minuscule amount of time to add basic clues to a scenario. That’s because clues are just indicators. The meat of the scenario — the stuff you’ll spend the bulk of your prep time on — is what the clues point at.

(The most common exception to this is when you design a handout for the clue, like the lore book for Dilar’s notes. But this is usually not, strictly speaking, necessary, and the time you’re investing there is more in the value-add of the cool handout than it is in the clue itself.)

Despite the relative ease of adding these clues, also note how much depth we’ve added to this scenario. For example, the original adventure only told us:

The cultists are here to plan further murders, trade advice on poison use, and engage in perverted sexual acts.

But we now have a much more specific agenda for the meeting. The natural interrogation of the scenario that happens when we think about the vectors required for clues means that we now understand the what and why of the cultists here. So if the PCs were to eavesdrop on the meeting or, as it turned out, infiltrate the meeting, we have a much firmer foundation to stand on for improvising the scene.

As I say, this happens all the time when you apply the Three Clue Rule in your scenario design.

The other thing you’ll discover is that missed clues will no longer be something that you fear. This can feel weird, but it’s incredibly liberating. For example, if this scenario had still depended on Tee looking at Dilar’s notes, I would have felt the need to reassure her that it was OK to sneak a peek. I would have needed to find some direct or indirect way of letting her know that she didn’t really need to be afraid of exposing herself and getting caught.

But because I knew that I’d made the scenario robust, I didn’t need to do that. The result was a vastly better scene, in which the tension of discovery drove the stakes from beginning to end. It would have been a shame if I’d felt a need to deflate that tension in order to prevent the scenario from breaking.

And this is, again, something that happens all the time when you’ve got the Three Clue Rule backstopping you. Missed clues are no longer catastrophes; they are a vital part of the scenario’s flow.

If you haven’t experienced this firsthand, it can feel paradoxical. It might even feel like a violation of the principles of smart prep: You have this prepped content that you’re not using! It’s wasted! But, in practice, missing a clue isn’t a waste — it’s a consequence, a cost, or a choice. And even if you have a clue that is “wasted,” it’s not that big of a deal because, as we noted before, the clues are mostly ephemera. They aren’t the meat of the scenario.

NEXT:
Campaign Journal: Session 27B – Running the Campaign: Improvising Floorplans
In the Shadow of the Spire: Index

Go to Part 1

The last piece of the puzzle here is that, in order for the Rivals and PCs to disagree about the current agenda, there has to BE a clear agenda for them to disagree about. As noted, this is something that Call of the Netherdeep struggles with.

Even if the Rivals weren’t a factor here, this is still something you’d want to fix. In fact, the Rivals can be a good diagnostic tool: If you hit a section of the campaign where you can’t figure out how the Rivals could have a competing agenda, that’s probably a good indication that you’ve failed to give the players enough information to have an opinion and a choice of their own.

Fortunately, I think addressing this problem doesn’t have to be particularly complicated. You just need to focus on two things. First, backfilling the lore surrounding Alyxian the Apotheon. Second, making sure there’s a clear goal (or choice of goals) at each stage of the campaign.

LORE OF ALYXIAN

When the PCs reach the Netherdeep, they are confronted by an extraplanar extrusion of a demigod’s traumatized mind. In exploring the physical space of the Netherdeep, they are simultaneously delving into the mystery of Alyxian’s past (and the trauma he has suffered).

This is a really cool dungeon, but in its current form the Netherdeep is doing most of the heavy lifting for both establishing a mystery (What is Alyxian’s story?) and then also solving that mystery. If you want to elevate this material, then you need to pull some of this amassed lore backwards so that it appears meaningfully earlier in the campaign. (All the way back, in fact. From the Emerald Grotto if not earlier.) What you want is for this enigma (Who is the Apotheon?) to be much more front-and-center throughout the campaign, so that by the time the PCs get to Netherdeep the players are fully engaged with the mystery and trying to figure it out. The Netherdeep should just be the focused resolution, as they fill in the gaps and realize some deep and terrible emotional truths.

The result will be much more satisfying, and feel more like the culmination of an entire campaign, instead of just another procedural step.

To understand what I mean here, let’s consider one small, concrete example: In Area 24 of the Netherdeep, the PCs encounter Perigee the Deva. This celestial actually fought with Alyxian during the Calamity centuries ago and remains, ruidium-corrupted, by his side even now.

This could be a really incredible moment: The PCs get to meet this legendary figure out of myth!

… but it really only works if you know who Perigee is before you walk into that room. And in Call of the Netherdeep, you don’t.

Imagine that you went on an adventure in the dungeon beneath the hill where King Arthur is buried, fated to rise in Britain’s hour of greatest need. As you journey through the dungeon you encounter some of his knights: Galahad, perhaps. Percival. Guinevere.

Those are cool moments because you recognize those names: “Holy crap! It’s Guinevere!”

But you don’t get that moment with Perigee because… well, who the heck is Perigee? No one at the table cares.

But if you establish Perigee earlier in the campaign — she appears in a mural in Betrayers’ Rise; she’s mentioned in a scrap of poetry; she has a statue in Cael Morrow or the Emerald Grotto — then you CAN have the moment of, “Holy crap! It’s Perigee!”

You just have to put the work in.

Check out Getting the Players to Care for various techniques you can use for doing this. There are already numerous opportunities throughout the campaign for including this lore, you just have to take advantage of them:

• Establishing the Calamity during the Festival of Merit.
• Murals in the Emerald Grotto prayer site.
• The first vision.
• What the Elders of Jigow know.
• What basic research in Jigow can uncover.
• Lore in Betrayers’ Rise.
• Lore held by the Bazzoxan researchers.
• What advanced research in the libraries and lore-stocks of Ank’Harel can uncover.
• More material seeded in Cael Morrow.

Use the Three Clue Rule and build your revelation lists. And this will require some care and thought: Don’t reveal enough? The players aren’t engaged with trying to figure it out. Reveal too much? You’ll undermine the revelations in the final act.

You’ll know you have the balance right if:

• The players already have strong opinions about Alyxian before ever reaching Ank’Harel (and, ideally, those opinions are varied and shifting); and
• The players have big questions about the Apotheon that they talk about and clearly want answers to.

This will allow the Rivals to challenge those opinions and to join in the discussion hypothesizing what the answers might be. But, even more importantly, the desire to answer those questions will motivate the agenda of the campaign.

CAMPAIGN AGENDAS

Call of the Netherdeep is a linear campaign (Jigow → Emerald Grotto → Bazzoxan → Ank’Harel → Cael Morrow → Netherdeep), which means that the structure of the campaign can be largely summarized as a series of agendas — i.e., the sequence of goals that move the PCs through the campaign.

In the adventure as written, these goals are generally underdeveloped, vague, and merely procedural. We’ve already seen, for example, how the PCs go to Bazzoxan because “an NPC told you to,” rather than having any true, actionable reason for going there.

As we discussed in the article on Running Betrayers’ Rise, we can strengthen the agenda which brings the PCs to Bazzoxan by seeding a specific piece of lore: The Jewel of Three Prayers is depicted somewhere in Betrayers’ Rise and the Jigow Elder knows this.

Tip: I also recommend that all of the characters in the Emerald Grotto — not just the group who claimed the Jewel — receive Alyxian’s vision. (And he remains connected to all of them.) Similarly, the Elder should seek out both groups the next morning. They share a destiny.

This sets up one of three key questions that should drive the campaign.

What is the Jewel of Three Prayers? Specifically, the PCs should be able to figure out that it was empowered by the gods to aid Alyxian three times; that shrines were erected in those places; and that they need to find the shrines in order to fully reactivate the Jewel.

What is ruidium and what should be done with it? It should become clear that ruidium is appearing at sites associated with the Apotheon.

Who is Alyxian the Apotheon? Piecing together the details of his story and framing the ultimate question of the campaign, which is whether he should helped, freed, or destroyed.

The PCs may not fully understand all of these questions to start with, but they should be pretty firmly in place by the time they’re wrapping up Betrayers’ Rise (even if the complete answers won’t be realized until Cael Marrow and the Netherdeep).

CORE STRUCTURE

Once the PCs get to Bazzoxan, the campaign moves into its core structure, which revolves around the scholar factions of Ank’Harel and their ruidium-based goals:

• Allegiance of Allsight (Prolix) want to use the ruidium to create weapons, armor, and other artifacts that they can sell to the highest bidder.
• Consortium of Vermilion Dreams (Aloysia) want to secure a monopoly on ruidium so that they can study its deeper mysteries and have sole access to its power.
• Library of the Cobalt Soul (Question) believe that ruidium is dangerous and it must be either destroyed or sealed away so that it cannot harm the world.

First, in Bazzoxan, the PCs make contact with one, two, or three researchers from Ank’Harel, who clearly communicate:

• The identities of their factions;
• The ruidium-based goals of their faction; and
• The existence of ruidium in both Betrayers’ Rise and Ank’Harel associated with the imagery of the Jewel of Three Prayers.

Second, these researchers refer the PCs to their factions (or come back with the PCs to Ank’Harel to make the proper introductions).

Third, the PCs join one (or more) of these factions and begin doing faction mission for them.

Structurally, this is quite straightforward. The key thing is that the factions and (most importantly) their conflicting agendas are made clear to the PCs immediately (instead of being largely obfuscated until later in the campaign).

Because the PCs now need to make some choices about what THEY think should be done with the ruidium, dynamic relationships with the researchers in Bazzoxan and the factions in Ank’Harel can emerge through actual play.

This also creates the opportunity to organically create a meaningful dispute between the PCs and the Rivals: Just give the Rivals a different opinion about what the significance of ruidium is and what should be done with it.

Design Note: I suspect it’s likely that at one point this WAS the intended structure for Call of the Netherdeep. At some point during development, however, the decision was made to (a) script a scene with Aloysia as a monologuing villain and (b) have all the researchers in Bazzoxan play coy with what they know in order to create Startling Revelations™ in Ank’Harel.

If so, these decisions really broke the back of the adventure as written: The PCs are forced to blindly “choose” a faction without understanding the significance of that choice, and Aloysia’s faction has been railroaded off the table as a viable ally (even though the rest of the adventure acts as if the PCs are just as likely to join it). Much like the Rivals, the factions get reduced to a simply “Me Help” / “Me Fight” dichotomy.

Go to Part 3: Situational Advice